Home / 18,689.44-25,791.62-10,306.24

Finding the Fourth Proportional to 18,689.44, 25,791.62 and 10,306.24

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Solution

The fourth proportional to 18,689.44, 25,791.62 and 10,306.24 is: 14,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.44 : 25,791.62 = 10,306.24 : x
  2. Step 2: Convert to fraction form
    18,689.44/25,791.62 = 10,306.24/x
  3. Step 3: Cross multiply
    18,689.44x = 25,791.62 × 10,306.24
  4. Step 4: Simplify right side
    18,689.44x = 265,814,625.71
  5. Step 5: Solve for x
    x = 265,814,625.71/18,689.44
  6. Step 6: Final answer
    x = 14,222.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.